Component release 20211001-01 (#1686)

* Component release 20211001-01

* Update release notes

* Remove hero duplication

* Use directory-style pages

* Building page tidy

* Revise principles section

* More directory page structure work

* Developing page cleanup
3 jobs for develop in 9 minutes and 20 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
passed #585000
docker
build

00:07:57

 
  Deploy
passed #585002
docker
deploy-aws-dev

00:01:06

passed #585001
docker
deploy-dev

00:01:22